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130256526 = 231091511319
BaseRepresentation
bin1111100001110…
…00111010001110
3100002002201100210
413300320322032
5231321202101
620531503250
73141106431
oct760707216
9302081323
10130256526
1167587724
1237757b26
1320ca848a
1413429818
15b67e7d6
hex7c38e8e

130256526 has 32 divisors (see below), whose sum is σ = 264844800. Its totient is φ = 42703200.

The previous prime is 130256507. The next prime is 130256527. The reversal of 130256526 is 625652031.

It is a junction number, because it is equal to n+sod(n) for n = 130256493 and 130256502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130256527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98095 + ... + 99413.

It is an arithmetic number, because the mean of its divisors is an integer number (8276400).

Almost surely, 2130256526 is an apocalyptic number.

130256526 is an abundant number, since it is smaller than the sum of its proper divisors (134588274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130256526 is a wasteful number, since it uses less digits than its factorization.

130256526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 130256526 is about 11412.9981161831. The cubic root of 130256526 is about 506.9126903251.

The spelling of 130256526 in words is "one hundred thirty million, two hundred fifty-six thousand, five hundred twenty-six".

Divisors: 1 2 3 6 109 151 218 302 327 453 654 906 1319 2638 3957 7914 16459 32918 49377 98754 143771 199169 287542 398338 431313 597507 862626 1195014 21709421 43418842 65128263 130256526